1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
content / browser / renderer_host / media / media_capture_devices_impl.cc [blame]
// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/media/media_capture_devices_impl.h"
#include "base/functional/bind.h"
#include "content/browser/browser_main_loop.h"
#include "content/browser/renderer_host/media/media_stream_manager.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
namespace content {
namespace {
void EnsureMonitorCaptureDevices() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
GetIOThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(
&MediaStreamManager::EnsureDeviceMonitorStarted,
base::Unretained(
BrowserMainLoop::GetInstance()->media_stream_manager())));
}
} // namespace
MediaCaptureDevices* MediaCaptureDevices::GetInstance() {
return MediaCaptureDevicesImpl::GetInstance();
}
MediaCaptureDevicesImpl* MediaCaptureDevicesImpl::GetInstance() {
return base::Singleton<MediaCaptureDevicesImpl>::get();
}
const blink::MediaStreamDevices&
MediaCaptureDevicesImpl::GetAudioCaptureDevices() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (!devices_enumerated_) {
EnsureMonitorCaptureDevices();
devices_enumerated_ = true;
}
return audio_devices_;
}
const blink::MediaStreamDevices&
MediaCaptureDevicesImpl::GetVideoCaptureDevices() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (!devices_enumerated_) {
EnsureMonitorCaptureDevices();
devices_enumerated_ = true;
}
return video_devices_;
}
void MediaCaptureDevicesImpl::AddVideoCaptureObserver(
media::VideoCaptureObserver* observer) {
MediaStreamManager* media_stream_manager =
BrowserMainLoop::GetInstance()->media_stream_manager();
if (media_stream_manager != nullptr) {
GetIOThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&MediaStreamManager::AddVideoCaptureObserver,
base::Unretained(media_stream_manager), observer));
} else {
DVLOG(3) << "media_stream_manager is null.";
}
}
void MediaCaptureDevicesImpl::RemoveAllVideoCaptureObservers() {
MediaStreamManager* media_stream_manager =
BrowserMainLoop::GetInstance()->media_stream_manager();
if (media_stream_manager != nullptr) {
GetIOThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&MediaStreamManager::RemoveAllVideoCaptureObservers,
base::Unretained(media_stream_manager)));
} else {
DVLOG(3) << "media_stream_manager is null.";
}
}
void MediaCaptureDevicesImpl::OnAudioCaptureDevicesChanged(
const blink::MediaStreamDevices& devices) {
if (BrowserThread::CurrentlyOn(BrowserThread::UI)) {
UpdateAudioDevicesOnUIThread(devices);
} else {
GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&MediaCaptureDevicesImpl::UpdateAudioDevicesOnUIThread,
base::Unretained(this), devices));
}
}
void MediaCaptureDevicesImpl::OnVideoCaptureDevicesChanged(
const blink::MediaStreamDevices& devices) {
if (BrowserThread::CurrentlyOn(BrowserThread::UI)) {
UpdateVideoDevicesOnUIThread(devices);
} else {
GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&MediaCaptureDevicesImpl::UpdateVideoDevicesOnUIThread,
base::Unretained(this), devices));
}
}
MediaCaptureDevicesImpl::MediaCaptureDevicesImpl()
: devices_enumerated_(false) {
}
MediaCaptureDevicesImpl::~MediaCaptureDevicesImpl() {
}
void MediaCaptureDevicesImpl::UpdateAudioDevicesOnUIThread(
const blink::MediaStreamDevices& devices) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
devices_enumerated_ = true;
audio_devices_ = devices;
}
void MediaCaptureDevicesImpl::UpdateVideoDevicesOnUIThread(
const blink::MediaStreamDevices& devices) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
devices_enumerated_ = true;
video_devices_ = devices;
}
} // namespace content